.page-products {
  --pp-rule: var(--frame) solid var(--ink);
  --pp-gap-lg: clamp(2rem, 5vw, 3.5rem);
  --pp-gap-md: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 首屏：宫门式中轴封面 ---------- */
.page-products .prod-hero {
  position: relative;
  padding: 1.5rem 0 clamp(2rem, 5vw, 3.25rem);
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(212, 166, 74, .18) 0%, rgba(212, 166, 74, 0) 62%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 58%, var(--lotus) 100%);
  border-bottom: var(--frame) solid var(--cinnabar);
  overflow: hidden;
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--gold) 0 16px, transparent 16px 32px);
  opacity: .6;
  pointer-events: none;
}

.page-products .breadcrumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-products .breadcrumb-list li + li::before {
  content: "/";
  margin-right: .5rem;
  color: var(--gold);
}

.page-products .breadcrumb-list a {
  color: var(--dai);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-products .breadcrumb-list a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-products .breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

.page-products .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap-md);
}

.page-products .hero-copy {
  position: relative;
  padding-left: 0;
}

.page-products .eyebrow {
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--cinnabar);
  margin: 0;
}

.page-products .hero-title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--dai-deep);
  margin: .5rem 0 .9rem;
}

.page-products .hero-lede {
  max-width: 52ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 1.15rem;
}

.page-products .hero-tags {
  margin: 0;
}

.page-products .hero-tags .tag {
  font-size: .74rem;
  letter-spacing: .06em;
}

.page-products .hero-index {
  align-self: start;
  padding: 1.25rem 1.35rem;
  background: var(--paper);
  border: var(--frame) solid var(--cinnabar);
  box-shadow: var(--shadow-brut);
}

.page-products .index-label {
  margin: 0 0 .85rem;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-products .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-products .index-list a {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .55rem .1rem;
  font-size: .95rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dashed var(--hair);
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-products .index-list a span {
  font-size: .72rem;
  color: var(--gold);
  letter-spacing: .08em;
}

.page-products .index-list li:last-child a {
  border-bottom: 0;
}

.page-products .index-list a:hover {
  color: var(--cinnabar);
  padding-left: .45rem;
}

/* ---------- 下载入口 ---------- */
.page-products .dl-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding: clamp(1.25rem, 3.5vw, 2rem);
  background: var(--paper);
  border: var(--frame) solid var(--ink);
  box-shadow: var(--shadow-brut);
  margin-bottom: var(--pp-gap-md);
}

.page-products .dl-size {
  display: inline-flex;
  align-items: baseline;
  gap: .35rem;
  padding: .45rem 1.1rem .6rem;
  background: var(--cinnabar);
  color: var(--paper);
  border: var(--frame) solid var(--ink);
  box-shadow: 3px 3px 0 var(--gold);
  margin-bottom: 1rem;
}

.page-products .dl-num {
  font-size: clamp(2.2rem, 8vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
}

.page-products .dl-unit {
  font-size: 1.05rem;
  letter-spacing: .14em;
}

.page-products .dl-note {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 1.25rem;
  max-width: 56ch;
}

.page-products .dl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-products .dl-seal-btn {
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-products .dl-seal-btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.page-products .dl-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .9rem;
  border-top: 1px dashed var(--hair);
  padding-top: 1.15rem;
}

.page-products .dl-facts li {
  display: grid;
  gap: .2rem;
}

.page-products .fact-key {
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--cinnabar);
}

.page-products .fact-val {
  font-size: .97rem;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 通用图文 ---------- */
.page-products .figure {
  margin: var(--pp-gap-md) 0 0;
}

.page-products .media-frame {
  border: var(--frame) solid var(--ink);
  box-shadow: var(--shadow-brut);
  background: var(--lotus);
  overflow: hidden;
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .figure-caption {
  margin-top: .7rem;
  font-family: var(--mono);
  font-size: .76rem;
  line-height: 1.65;
  letter-spacing: .03em;
  color: var(--stone);
}

/* ---------- 两步进入 ---------- */
.page-products .steps {
  display: grid;
  gap: 1rem;
  counter-reset: pp-step;
}

.page-products .step {
  background: var(--paper);
  border: var(--frame) solid var(--dai);
  box-shadow: 5px 5px 0 rgba(51, 80, 90, .3);
}

.page-products .step-sum {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  border-bottom: 1px solid transparent;
  transition: background .2s var(--ease);
}

.page-products .step-sum::-webkit-details-marker {
  display: none;
}

.page-products .step[open] .step-sum {
  border-bottom-color: var(--hair);
  background: var(--lotus);
}

.page-products .step-num {
  flex: none;
  padding: .22rem .6rem;
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--paper);
  background: var(--cinnabar);
}

.page-products .step-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--dai-deep);
}

.page-products .step-body {
  padding: .9rem 1.15rem 1.15rem;
}

.page-products .step-body p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 差异对照表 ---------- */
.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.1rem;
}

.page-products .filter-btn {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .06em;
  padding: .5rem .9rem;
  color: var(--dai);
  background: var(--paper);
  border: 2px solid var(--dai);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .filter-btn:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

.page-products .table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--frame) solid var(--ink);
  box-shadow: var(--shadow-brut);
  background: var(--paper);
}

.page-products .diff-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: .84rem;
  line-height: 1.6;
}

.page-products .diff-table caption {
  caption-side: top;
  text-align: left;
  padding: .85rem 1rem;
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--stone);
  border-bottom: 1px dashed var(--hair);
}

.page-products .diff-table th,
.page-products .diff-table td {
  padding: .85rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--hair);
}

.page-products .diff-table thead th {
  background: var(--dai);
  color: var(--paper);
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-products .diff-table tbody th {
  color: var(--dai-deep);
  font-weight: 700;
  white-space: nowrap;
}

.page-products .diff-table tbody tr:nth-child(even) {
  background: rgba(232, 217, 192, .42);
}

.page-products .diff-table tbody th:first-child,
.page-products .diff-table tbody td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--paper);
  box-shadow: 2px 0 0 var(--hair);
}

.page-products .diff-table tbody tr:nth-child(even) th:first-child,
.page-products .diff-table tbody tr:nth-child(even) td:first-child {
  background: #f1e7d5;
}

.page-products .diff-table tbody tr[hidden] {
  display: none;
}

.page-products .state {
  display: inline-block;
  padding: .18rem .55rem;
  font-size: .72rem;
  letter-spacing: .1em;
  white-space: nowrap;
  border: 1px solid currentColor;
}

.page-products .state--ok {
  color: #96502a;
  background: rgba(240, 216, 154, .55);
}

/* ---------- 设备适配 ---------- */
.page-products .adapter-grid {
  gap: 1rem;
}

.page-products .adapter-card {
  background: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 4px 4px 0 rgba(26, 23, 20, .55);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}

.page-products .adapter-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(26, 23, 20, .7);
  border-color: var(--gold-light);
}

.page-products .adapter-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--paper);
  margin: 0 0 .3rem;
}

.page-products .adapter-card .card-head {
  background: var(--dai-deep);
  padding: .95rem 1.1rem;
}

.page-products .adapter-card .card-meta {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--gold-light);
}

.page-products .adapter-card .card-body {
  padding: 1rem 1.1rem 1.15rem;
}

.page-products .adapter-card .card-body p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 校验记录 ---------- */
.page-products .verify-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
  border-top: 2px solid var(--dai);
}

.page-products .verify-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: .45rem;
  padding: 1.05rem .25rem;
  border-bottom: 1px dashed var(--hair);
  transition: background .2s var(--ease);
}

.page-products .verify-item:hover {
  background: rgba(232, 217, 192, .38);
}

.page-products .verify-code {
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--cinnabar);
}

.page-products .verify-body h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--dai-deep);
  margin: 0 0 .3rem;
}

.page-products .verify-body p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .verify-item .state {
  justify-self: start;
}

.page-products .verify-note {
  margin-top: 1.25rem;
  background: var(--lotus);
  border: 2px solid var(--gold);
  box-shadow: 4px 4px 0 rgba(26, 23, 20, .5);
}

.page-products .verify-note .card-body {
  padding: 1.05rem 1.15rem;
}

.page-products .verify-note p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-products .verify-note a {
  color: var(--cinnabar);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .verify-note a:hover {
  color: var(--cinnabar-deep);
}

/* ---------- 常见问题 ---------- */
.page-products .faq-list {
  display: grid;
  gap: .7rem;
}

.page-products .faq-item {
  background: var(--paper);
  border: 2px solid var(--dai);
}

.page-products .faq-item summary {
  padding: .9rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--dai-deep);
  list-style: none;
  position: relative;
  padding-right: 2.4rem;
}

.page-products .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-products .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--cinnabar);
}

.page-products .faq-item[open] summary::after {
  content: "−";
}

.page-products .faq-item[open] summary {
  border-bottom: 1px dashed var(--hair);
}

.page-products .faq-body {
  padding: .85rem 1.1rem 1.05rem;
}

.page-products .faq-body p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 底部引导 ---------- */
.page-products .cta-band {
  margin-top: var(--pp-gap-lg);
  padding: clamp(1.25rem, 3.5vw, 2rem);
  background: var(--night);
  border: var(--frame) solid var(--gold);
  box-shadow: var(--shadow-brut);
  display: grid;
  gap: 1rem;
}

.page-products .cta-text {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 3vw, 1.35rem);
  line-height: 1.7;
  color: var(--paper);
}

.page-products .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .dl-panel {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }

  .page-products .dl-facts {
    border-top: 0;
    border-left: 1px dashed var(--hair);
    padding-top: 0;
    padding-left: 1.5rem;
    align-content: start;
  }

  .page-products .verify-item {
    grid-template-columns: 10.5rem 1fr auto;
    align-items: start;
    gap: 1.25rem;
  }

  .page-products .verify-item .state {
    justify-self: end;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-hero {
    padding: 2.25rem 0 clamp(2.75rem, 5vw, 4.25rem);
  }

  .page-products .hero-grid {
    grid-template-columns: 1fr 20rem;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-products .hero-copy {
    text-align: left;
  }

  .page-products .hero-index {
    margin-top: .5rem;
  }

  .page-products .adapter-grid {
    gap: 1.25rem;
  }
}

@media (min-width: 1180px) {
  .page-products .dl-panel {
    grid-template-columns: 1.3fr .7fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-seal-btn,
  .page-products .adapter-card,
  .page-products .index-list a,
  .page-products .filter-btn,
  .page-products .verify-item,
  .page-products .breadcrumb-list a {
    transition: none;
  }

  .page-products .dl-seal-btn:hover,
  .page-products .adapter-card:hover {
    transform: none;
  }
}